Forum: IronRuby How do I pass an ExpandoObject from C# into IronRuby?

Posted by Goode, Troy (Guest)
on 2010-03-03 08:21
(Received via mailing list)
I tried to send this question earlier, but it did not appear to go 
through. Shortly after I tried to send it the first time, the "Consuming 
DynamicObjects in IronRuby" thread popped up. It seems likely that the 
two issues are related, but as my situation is a bit different and 
results in a different error message, I thought it would be a good idea 
to resend this question. Note: I am using .Net 4.0 RC and the "CTP for 
.Net 4.0 RC" release of IronRuby...


So I'm finally getting around to testing IronRuby/C# integration and hit 
a stumbling block. Let's say I have the following class in Ruby:



class HandleMoveRequested

                def handle(msg)

                                System::Console.WriteLine "Moving 
character to " + msg.x.to_s + "," + msg.y.to_s + "."

                end

end



As you can see it is a simple message handler that expects an object 
that has an "x" and a "y" property. Now say I have the following C# 
code:



dynamic handler = ruby.HandleMoveRequested.@new();

dynamic msg = new ExpandoObject();

msg.x = 1;

msg.y = 2;

handler.handle(msg);



Creating the handler instance works fine, so I won't bore you with the 
details of that, but for some reason the last line throws an 
InvalidOperationException with the message "unbound variable: value". 
Everything works if the message is a Ruby class that I create manually, 
but I'd love to be able to just create a fully dynamic object (such as 
the ExpandoObject) here and pass it in. Is this just not possible?



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Posted by Kevin Radcliffe (Guest)
on 2010-03-03 20:24
(Received via mailing list)
Answered your question over on StackOverflow:
http://stackoverflow.com/questions/2365668/how-do-i-pass-an-expandoobject-from-c-into-ironruby/

<http://stackoverflow.com/questions/2365668/how-do-i-pass-an-expandoobject-from-c-into-ironruby/>Essentially,
Tomas fixed this, and if you build from source now, your code will work.
Thanks
Best Regards,
Kevin Radcliffe
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